1071 Results for: "SIGMA ALDRICH MICROSCOPY"

Supplier: SIGMA ALDRICH MICROSCOPY

Formalin solution (10%, neutral buffered) is a widely used fixative for samples processed for light microscopy. It requires a relatively short period of fixation. It is suitable for the long-term storage of tissue. Once properly fixed, the tissue should be able to withstand the subsequent stages of tissue processing or staining.

Supplier: SIGMA ALDRICH MICROSCOPY

Amyloid protein is detected in tissue with Congo red, a metachromatic stain. Staining is intensified by pretreatment of tissue with alkaline sodium chloride.

Supplier: SIGMA ALDRICH MICROSCOPY

7-Diethylamino-3-(4-maleimidophenyl)-4-methylcoumarin has been used: as a nontoxic substitute for conjugation with antibody(93) to aid fluorescent detection of Coenzyme A (CoA-SH) in human N-myristoyltransferases assay (94)

Supplier: SIGMA ALDRICH MICROSCOPY

Gill formulation No. 3 may be used for cytology and/or histology as a progressive or regressive stain depending on length of staining time. Used with hematoxylin and eosin staining.

Supplier: SIGMA ALDRICH MICROSCOPY

Sudan II has been used to determine its presence in commercial spices such as hot chilli food samples (LC–ESI–MS/MS).

Supplier: SIGMA ALDRICH MICROSCOPY

Schiff base which can be converted to amino alcohols and amino esters.

Supplier: SIGMA ALDRICH MICROSCOPY

4-(4-Nitrophenylazo) resorcinol, also known as azo violet or magneson I, is a red colored powder. It functions as a spot test reagent and forms blue lake on reaction with Mg(OH)₂ in alkaline solution. It is mainly used for determining the presence of magnesium in the solution. 4-(4-Nitrophenylazo)resorcinol is a pH indicator.

Supplier: SIGMA ALDRICH MICROSCOPY

Picric acid (2,4,6-trinitrophenol) has antibacterial as well as antifungal properties. It stains the fungal spores and hyphae a pale to dark yellow color.

Supplier: SIGMA ALDRICH MICROSCOPY

to be used with SIAL 78711 RenLam M-1 (Epoxy Embedding Medium)

Supplier: SIGMA ALDRICH MICROSCOPY

Certified for Giemsa stain for blood films and for the Wolbach′s Giemsa method for paraffin sections. Giemsa is a versatile polychromatic stain, which is suitable for staining a diverse range of specimens. It is a buffered thiazine-eosinate solution designed to provide coloration of blood cells. Giemsa’s stain is frequently used for diagnostic purposes in hematology to differentiate the nuclear and cytoplasmic morphology of platelets, RBCs, WBCs, and parasites. It is frequently used in combination with other dye solutions as May-Grunwald’s solution for Pappenheim (MGG) and Wright-Giemsa. The Giemsa stain was adapted to histology due to its unique staining of chromatin, nuclear membranes, and cytoplasmic elements. Giemsa′s staining solution is composed of methylene blue, azure, and eosin.

Supplier: SIGMA ALDRICH MICROSCOPY

The combination of azure A and silver staining is used for the quantification of glycosaminoglycans in agarose gels. It is also used for the staining of chromosomes in the nucleus. Azure A is a main component of the azure B/polychromed methylene blue-eosin stains family, also referred to as the Romanowsky stain. Azure A is a basic cationic dye.

Supplier: SIGMA ALDRICH MICROSCOPY

S-Ethylisothiouronium bromide, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Biotinylation reagent

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2-(3-Nitrophenylsulfonyl)ethanol,97%

Supplier: SIGMA ALDRICH MICROSCOPY

Crystal Ponceau 6R has been used in the MSB (martius yellow–crystal scarlet–methyl blue) staining procedure for the staining of collagen fibers and erythrocytes.

Supplier: SIGMA ALDRICH MICROSCOPY

Rose Bengal has been used to evaluate acrosome integrity. It has also been used to initiate photothrombotic occlusion in blood.

Supplier: SIGMA ALDRICH MICROSCOPY

Azure A eosinate, powder, crystals or chunks, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Sudan IV is a hydrophobic azo dye. It stains triglycerides and imparts an intense red colour. The dye does not stain lipid droplets or phospholipids. It is also used a diagnostic assay manufacturing, hematology, histology.

Supplier: SIGMA ALDRICH MICROSCOPY

Used as a red nuclear counterstain in various cytochemical procedures.

Supplier: SIGMA ALDRICH MICROSCOPY

Vanillin azine, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

4-Pentylbicyclo[2.2.2]octane-1-carboxylic acid, 99%.

Supplier: SIGMA ALDRICH MICROSCOPY

Allura Red AC is a food azo dye. It is a dark red powder or granules, that is soluble in water and insoluble in ethanol. Allura Red AC has been used: for the determination of fecal neutral sterols (FNS) in mice, to evaluate its developmental toxicity, as a coloring reagent for observing the experimental performance of liquid-handling robot.

Supplier: SIGMA ALDRICH MICROSCOPY

Chromotrope 2R has been used in the Gomori trichrome staining in osteochondral tissues. It has also been used for the staining of eosinophils in lung sections. Chromotrope 2R is used for the staining of microsporidia in body fluids and stool samples. It is used in modified Gomori′s trichrome staining. Chromotrope 2R has high affinity for phospholipids and is used for the staining of mitochondrial and endoplasmic reticulum membrane in histological samples.

Supplier: SIGMA ALDRICH MICROSCOPY

Amine-reactive haptenylation reagent. This succinimidyl ester derivative of digoxigenin has been shown to inhibit the Na+/K+- ATPase by binding to the cardiac steroid receptor site.

Supplier: SIGMA ALDRICH MICROSCOPY

5,10,15,20-Tetrakis(4-methoxyphenyl)-21H,23H-porphine is an achiral porphyrin derivative. It forms chiral supramolecular assemblies via spontaneous symmetry breaking at the air or water interface.

Supplier: SIGMA ALDRICH MICROSCOPY

Eosin Y (yellowish), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Bicinchoninic acid is used for the determination of protein concentration. It is responsible for the making of intense purple complex with cuprous ion (Cu+) in the presence of alkaline conditions. The amount of Cu+ is in relation with the protein concentration.

Supplier: SIGMA ALDRICH MICROSCOPY

Gill No. 1 formulation is used as a progressive cytology stain. Used with hematoxylin and eosin staining.

Supplier: SIGMA ALDRICH MICROSCOPY

Nile Blue A, Dye content ≥75 % (Basic Blue 12; Nile blue sulfate)

Supplier: SIGMA ALDRICH MICROSCOPY

Naphthalene-2,3-dicarbonitrile, Sigma-Aldrich®